Java Collection, PriorityQueue Exercises: Iterate through all elements in priority queue
Java Collection, PriorityQueue Exercises: Exercise-2 with Solution
Write a Java program to iterate through all elements in priority queue.
Sample Solution:-
Java Code:
import java.util.PriorityQueue;
public class Exercise2 {
public static void main(String[] args) {
PriorityQueue<String> pq = new PriorityQueue<String>();
pq.add("Red");
pq.add("Green");
pq.add("Orange");
pq.add("White");
pq.add("Black");
System.out.println("Elements of the Priority Queue: ");
// iterate the Priority Queue
for (String element : pq) {
System.out.println(element);
}
}
}
Sample Output:
Elements of the Priority Queue: Black Green Orange White Red
Java Code Editor:
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Previous: Create a new priority queue, add some colors (string) and print out the elements of the priority queue.
Next: Add all the elements of a priority queue to another priority queue.
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Java: Tips of the Day
How to sort an ArrayList?
Collections.sort(testList); Collections.reverse(testList);
That will do what you want. Remember to import Collections though!
Ref: https://bit.ly/32urdSe
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